Locomotor Apparatus
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
This article defines the locomotor apparatus as the specialized organelles responsible for movement, primarily in protists. It details the structures involved in different protozoan groups, such as cilia and flagella, and notes its application to mitotic structures like centrioles and the spindle. The text concludes by referencing related human anatomy and physiology topics.
Encyclopedia entry (1928–1936)
Locomotor Apparatus, a term used mainly in protistology to denote the aggregate of special organelles morphologically connected with the function of movement. Thus, in infusoria and flagellates the L. a. is represented by cilia or respectively flagella and their basal granules; in particular, in representatives of the family Trypanosomidae the L. a. includes the kinetoplast (blepharoplast + parabasal body) and the red filament. This term is also applied to those constituent elements of the nucleus from which the motor adaptations of mitosis are formed, namely centrosomes, corresponding centrioles and the spindle (Hartmann). The L. a. in man—see Movements, March, Muscular System, Human Motorics, Nervous System, Joints and Walking.
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“Locomotor Apparatus.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/locomotor-apparatus/